The Shadow's underworld agents Hawkeye and Cliff Marsland take center stage in two thrilling pulp novels by Walter Gibson writing as "Maxwell Grant." First, what is the strange secret of "The Green Box" that is worth a human life? The Shadow seeks the deadly secret in a masterpiece of misdirection that introduced aides Hawkeye and Tapper. Then, the Master of Darkness and his underworld operatives investigate "The Getaway Ring," a racket that helps mobsters evade capture via a modern-day "underground railway."

BONUS: "The Crawling Death," a lost thriller scripted by radio Shadow Bret Morrison! This instant collector's item reprints the classic color cover paintings by George Rozen and Graves Gladney, the original interior illustrations by Tom Lovell and Edd Cartier, and historical articles by Anthony Tollin and Will Murray